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Ubuntu Security Notice USN-4078-2
August 19, 2019
openldap vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 14.04 ESM
– Ubuntu 12.04 ESM
Summary:
Several security issues were fixed in OpenLDAP.
Software Description:
– openldap: OpenLDAP utilities
Details:
USN-4078-1 fixed several vulnerabilities in openldap. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.
Original advisory details:
It was discovered that OpenLDAP incorrectly handled rootDN delegation. A
database administrator could use this issue to request authorization as an
identity from another database, contrary to expectations. (CVE-2019-13057)
It was discovered that OpenLDAP incorrectly handled SASL authentication and
session encryption. After a first SASL bind was completed, it was possible
to obtain access by performing simple binds, contrary to expectations.
(CVE-2019-13565)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 14.04 ESM:
slapd 2.4.31-1+nmu2ubuntu8.5+esm1
Ubuntu 12.04 ESM:
slapd 2.4.28-1.1ubuntu4.9
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/4078-2
https://usn.ubuntu.com/4078-1
CVE-2019-13057, CVE-2019-13565
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